Process and apparatus for producing filaments



Sept. 4, 1928. 1,683,055

. J. A. ROUX PROCESS AND APPARATUS FOR PRODUCING FILAIENTS OriginalFiled Get. 6. 1921 g s -s 1 Sept. 4, 1928. 1,683,055

J. A. ROUX PROCESS AND APPARATUS FOR PRODUCING FILAMENTS Original FiledOpt. 6. 1921 2 Sheets-Sheet 2 Patented Sept. 4, 1928.

PATIENT OFFICE.-

JQHN ANDRE ROUX, OF 'IENAFLY, NEW JERSEY.

PROCESS AND APPARATUS FOR PRODUCING FILAMENTS.

Application filed October 6,1921, Serial No. 505,953. Renewed November18, 1827.

This invention relates to the production of continuous lengths ofmaterial by expressing a semi-liquid material from an orifice and dryingit.

One of the objects of the invention is to provide a process and theapparatus therefor by which filaments may be formed at a relatively highrate of speed; the uniformity of size throughout the length ismaintained; and the quality of and strength of product made remarkablyperfect. Features of the invention relate to the special apparatus usedand the relative arrangement of the parts of this apparatus, wherebymaterial treated is introduced into a particular expressing apparatusand subjected thereafter to a particular electric treatment during itstransformation into the completed product.

In the present embodiment, process and apparatus relate particularly tothe produc tion ofan artificial filament and artificial silk, whichproduct possesses to an unusual degree the desirable qualities ofnatural silk.

0 One particularly important result of the present invention is theproduction of an elastic stretchable artificial material.

Other advantageous features are described and claimed in the followingspecification and claims, and illustrated in the accompanying drawingsin which:

Fig. 1, is an elevation in partial section showing the polarizer belowthe spinneret tube;

Fig. 2, is a view showing an elevation the relative position and size ofthe casing enclosing the spinneret tubes, the polarizer be- 0 on thepolarizer and showing the manner of mounting of the ends of thepolarizerframe in the supporting wall.

Referring in detail to the drawings, 1 indicates a vertical wall of a'building or other suitable support. 2 represents the floor-of thebuilding or.other suitable laterally extending support, and 3representsa similar floor positioned about twelve feet be- 1 low the floor 2.Mounted on the floor 2 and positioned over a suitable opening. therein-wardly beyond the casing ing lndicated at 5 and the lower ends of thesupportin arms bein indicated at 5 in Fig. lhe casing 4 18 preferablymade of aluminum sheeting having side walls of stock. Positionedvertically within the easmg are a series of spinneret tubes 4'? havingdischarge orificesat their lower ends.. In F g. 1 one of these tubes isshown in section within the casing with the lower end pro ectmgdownwardly below the casing.- A cover 4 for the casing isformed ofaluminum of a thickness of and in the top of the cover plate 4 is anopening for the reception of the intake pipe 4, through which lattermaterial to be expressediis admitted to the casing. At the top of {thevertical walls of the casing 4 and resting on-the laterally extendingannular flange formed continuous with the wall is an upper s acing plateformed of 5 aluminum and w ich is perforated for the reception of thetubes 4 as will be'descri'bed. The bottom of the casing isprovided witha 5" wall 4 which is l1kew1se perforated with holes to correspond withtheop en ngs in the plate 4*. Corre-' sponding openings in the twoplates are brought into alignment by adjustment of the plate 4withrespect to the casing and before the top cover 4 is finally secured.Each spinneret tube 4 is made of aluminum rolled evenly to have anoutside diameter "of V The length of the tube corresponds to the lengthof the casing and rojects downoor for a distance of 2", graduallytapering from the bottom of the casing to the tip of the tube.

The lower end of the tube is drilled to provide the proper size opening,and the opening provided by a No. 64 drill, providingan opening of aboutof an inch, has been found satisfactory. The to part of the spinnerettube is provided with an annular flange 4 which rests on the uppersurface of the spacing plate 4 and is rolled thereon and soldered tomake a tight fit, or otherwise provided with a liquid'tight fit in thespacing plate. After the spacing plate 4 and the tubes 4 are in theirproper positions, the top and, the diameter is 5 indicated at 11 on thedrawing. negative pole of the static machine 9, as invFi 1 and Fig. 2are drawn substantially to sea e. The inside of'the casin is 28" high Te to flange on the casing 4 is about 1" wide.

tapering to the inside imensions of the casing, and on the outsidetapering to the flange of the casing. Eight clamping bolts 4 are usedfor clamping the top coverand spacing plateto the Cylinder.

One of the particular features of the invention is the particularconstruction of the polarizer member and its relative position, withrespect to the casing 4. As shown in the drawings, the polarizer isformed as three sides of a tubular frame, substantially as three sidesof a rectangle. The front side is formed by a tube 6 which is mounted inalignment with the central axle line of the casin 4. The top side of thepolarizer is forme by the tube 6, and the lower side of the olarizer isformed by the tube 6", and both sides 6 and 6 are held' rigid withrespect to the front side 6 by being mounted in the metal balls 6 and 6respectively. The extreme ends of the parallel members 6 and 6 aresupported in the Wall 1 and are preferably insulated therefrom bysuitable hard rubber sockets and 8 respectively. The polarizer tubingmay satisfactorily be made from an alloy composition composed of ofcopper and 35% of gunmetal. The sides 6, 6" and 6 are each about 8" longwith a diameter of 1 6 and 6 are each about 2% in diameter on theoutside and about 2" inside, or in other words about 4" thickness.

9 indicates a machine for generating static electricity, and from thepositive pole 9 a wire 10 extends .to the tube 6 of the. olarizer and isconnected. electrically tiereto.

by means of a copper band about wide and one thirty-second of an inch inthickness which is secured around the tube 6 and To the dicated'at 9", awire 12 extends upwardly through the vertical wall of the casing 4' andis securedcto the spinneret tube '4 by means of a second copper band ofthe same dimensions as those of the band. 11. This copper band on thetube 4" is indicated 12*. The wire 12 insulated from the wall 4 of thecasing by means of a protecting insulating tube 12 mounted in an openingin the casinglwall. V

In Fig. 2, mounted on the floor 3 is diagrammatically indicated therelative position of a receiving drum or reel 13'wh1ch he top cover 4".is about 4" dee at the central point,

The balls is driven throughra chain or belt 14 b means of' a suitablesource of power, suc as' an electric motor, 15.

. .The position of parts shown in Fig. 2 provides that the to of thepolarizer frame 1s 6 feet from the ttom of the casing 4.

-The polarizer is likewise- 6 feet from the floor 3 and the receivingreel 13 is mounted on the floor 3 and about 8 feet to one side of .thepolarizer.

In the operation of the apparatus and grade of molasses, is

the material leaves the spinneret'tube noz'- zle it is guided downwardas a silk filament and one end connected to the receiving member 13. Inthe downward movement of the filament it is guided relatively closetothe polarizer member, not closer than 1" and not further than 3 fromthe larizer.- During this movement the static machine is in operationwith the positivepole connected to t e polarizer and thenegative' oleeon,- nected. to the spinneret tube, an a static force approximatelyperes per minute is e ective at the polarizer. I

As a result of the expressing action described and the subsequenttreatment, the material extends from the filament tube nozzle. to thereceiving member for a distance of over 12 feet, durin -which period itis drying and being su jected to the static treatment. From aninspection of Fig. 2 of the drawing, which'illustrates the polarizer saced from and below the discharge ori ce, it will be obvious thatasubstantial drying of the filament will have uivalent to .01 ambeencompleted during the movement from the dischar e orifice to the regionof the polarizer; he assistance received as a result of the electricaltreatment provides a filament of particularly increased continuity andevenness. The presentapparatus and process has made it possible tooperate at an unusual rate of speed as compared toknown ressure systems.In addition to the ElOdllCtlOIl of an elastic silky thread, it has confound that the denier of the thread is made remarkablycertain by the useof this invention.

In mountingv the spinneret tubes in the casing 4 so as'to make a firm tiht fit, the openings in the bottom 4" are drllled to the exactmeasurmentof the tubes, and the inside of the bottonji 4 counter-Sunkfor to provide a seat for the tapering 2" portion of the tubes. When thewires 12 are secured to the tubes 4 by means of the copper band 12 itwill be observed that the wires 12 and the bands 12 are located in aperfectly dry chamber beneath the spacing plate 4, and between thislatter plate and the inner upper surface of the bottom 4. In practiceabout 30 tubes are mounted in the casing 4, each according to thedetails described with respect to the single tube illustrated in thepresent drawings, and

changes in the number of tubes will not de- 5 between said orifice andsaid reel, and on "a level below the level of said discharge orifice andspaced sufficiently distant there- 'from to effect ai drying actionduring the travel of a filamntvfrom the discharge orifice to the regionof said polarizer, and .a

source of electrihity having one pole electrically connected to saidpolarizer member and the other pole electrically connected to said tube.1 2. In apparatu for producing filaments, a spinneret'tube having adischarge orifice,

- a collecting feel, a polarizer member located along the path of travelof the filament. and between's'aid orifice and said reel and spacedsufliciently distant from said orifice to effeet a drying action in thefilament during the travel of the filament from the orifice to theregion of said polarizer, and the source of electricity having one poleconnected to said polarizer member and the other pole connected to saidtube.

3. In apparatus for producing filaments, a spinneret tube having adischarge orifice, a device for collecting a filament, a polar- 0 izermember located along the path of travel of the filament'material betweensaid, orifice and said collecting device and on a level below the levelof said discharge orifice and a spaced sufiiciently distant therefrom toeffect a drying action during the travel of a filament from thedischarge orifice to the I region of said polarizer. and a source of thenegative said tube.

the filament material between said orifice and said collecting deviceand on a' level below the level of said discharge orifice and spacedsulfici'ently distant therefrom to ef-- feet a drying action during thetravel of a filament from the discharge orifice to the region of saidpolarizer, and a source of stat c electricity having the positive poleelectrically connectedto said polarizer and pole electrically connectedto 5. In apparatus for producing filaments, a spinneret tube having adischarge orifice,

a polarizer member located on a level below the level of said dischargeorifice and spaced sufiiciently distant therefrom to effect a dryingaction during the travel of a filament from the discharge orifice to theregion of said polarizer, a source of electricity having one poleelectrically connected to said polar-' izer member and the other oleelectrically connected to saidtube, and a filament re= ceiving memberlocated on a level below the level of said polarizer.

6. In apparatus for producing filaments, a-

spinneret tube having a discharge orifice, a

polarizer member located on a level below the level of said dischargeorifice and spaced sufliciently distant therefrom to effect adryin'gaction during the travel of a filament from the discharge orifice tothe" region of said polarizer, a source of electricity having one poleelectrically connected to said polarizer ,member and the other poleelectrically connected to said tube, and a filament receiving member 10-cated 'on a level below the level of said' polarizer, said receivingmember being at least as far below said polarizer as said polarizerisbelow said tube.

7. In apparatus for producing filaments, a spinneret tube having adischarge orifice,

a polarizer member located on a levelbelow the level of said dischargeorifice and spaced sufiiciently distant therefrom to effect a dryingaction during the travel of a filament from the discharge orifice to theregion of said polarizer, a source of electricity having one ;poleelectrically connected to said polarizer member and the other poleelectrically connected to said tube, and a filament receiving memberlocated on a level below the level of said polarizer, said receivingmember being at least as far below said polarizer as said polarizer isbelow said tube, and as far to one side as it is below said polarizer.

shaped metal members at the adjacent i I sided tubular frame supportedby the free ends of two of the sides. I

10. In apparatus for producing filaments, a polarizer member comprisinga three sided tubular frame supported by the free ends of two of thesides, and having metal ball members connecting and holding theiradjacent ends.

11.111 apparatus for producing filaments, a polarizer member comprisinga three sided frame formed as three sides of arectangle and supported bythe three ends of the parallel arms.

12. In apparatus for producing filaments, a polarizer member comprisinga three sided frame formed as three sides of a rectangle and supportedin a vertical plane by the free ends of the )arallel arms. 13. Inapparatus or producing filaments, a spinneret tube having a dischargeorifice, and a three sided tubular polarizer frame mounted below saidspinneret tube.

14. In apparatus for producing filaments, a spinneret tube having adischarge orifice, and a three sided tubular olarizer frame mounted in avertical plane elow said spinneret tube. I

lib

15. In apparatus for producing filaments, a spinneret tube having adischarge orifice, and a three sided tubular polarizer frame formed asthe three sides of a rectangle and supported in a vertical plane beneathsaid spinneret tube by the free ends of the parallel arms.

16. In apparatus for producing filaments, a spinneret tube having adischarge orifice, and a three sided'tubular polarizer frame I formed asthe three sides of a rectangle and supported in a vertical planebeneathsaid spinneret tube by the free ends of the par allel arms. thedistance between said tube and said frame being at least eight timesgreat as the height of said frame.

'17. In apparatus for producing filaments, a spinneret tube havingadischarge orifice,

and a three sided tubular polarizer frame mounted in a vertical planebelow said spinneret tube, the distance between said tube and saidframebeing at least eight timesas' great as the height of said frame.

18. In apparatus for producing filaments, a spinneret tube having adischarge orifice, and a-thrce sided tubular polarizer frame formed asthe three sides of a rectangle and supported in avertical plane beneathsaid spinneret tube by the free ends of the par- 'allel arms. thedistance between said tube and a three sided tubular polarizer framemounted in a vertical plane below said spinneret tube, the distancebetween said tube and said frame being at least eight times as great asthe height of said frame, and a filament receiving member located on alevel below the levelof said frame and as far below said frame as saidframe is below said tube.

20. In apparatus for producing filaments, a spinneret tube having adischarge orifice, a three sided tubular polarizer frame mounted belowsaid discharge orifice, and a source of electricity electricallyconnected to sa'd polarizer and to said tube.

21. In apparatus for producing filaments,

a spinneret tube having a discharge orifice,

23. In apparatus-for producingfilaments,

a sp'nneret tube having a discharge orifice,

a three sided tubular olarizer frame formed as the three sides 0 arectangle and supported in a vertical plane beneath said spinneret tubeby the free ends of the parallel arms, the distance between said tubeand said frame being at least eight times as great as the height of saidframe and a source of electricity electrically connected to saidpolarizer and to said tube.

24. In apparatus for producing filaments, a spinneret tube having adischarge orifice, a three sided tubular polarizer frame mounted in avertical plane below said spinneret tube, the.distance between said tubeand'said frame being at least eight times as great as the height of saidframe, and a source of electricity electrically connected to' saidpolarizer and to said tube."

25. Inapparatus for producing filaments,

a spinneret tube having a discharge orifice, a three sided tubularolarizer frame formed as the three sides 0 a rectangle and supported ina vertical plane beneath said spinneret tube by'the free ends of theparal- -lel arms, the distance between said tube and said frame being atleast eight; times as great as the height of said frame, a filamentreceiving member located on a level below the levelof said frame and asfar below said frame as said frame is below said tube, and a source ofelectricity electrically connected to said polarizer and to said tube,

26. In apparatus for producing filaments,

a three sided tubular polarizer frame mounted in a vertical plane belowsaid spinneret tube, the distance between said tube and said frame beingat least eight times as great as the height of said frame, and afilament receiving member located on a level below the level of saidframe and as far below said frame as said frame is below said tube, anda source of electricity electri cally connected to said polarizer and tosaid tube.

27. In apparatus for producing filaments, a spinneret tube having adischarge orifice, olarizer frame mounted below said disc arge orifice,a source of static electricity having the posi"-' tive pole thereofconnected to said polarizer and the negative pole connected to saidtube. 28. In apparatus for producing filaments, a spinneret tube havinga discharge orifice, a three sided tubular polarizer frame mounted in avertical plane below said discharge orifice, and a source of staticelectricity having a positive pole thereof connected to said polarizerand the negative pole connected to said tube.

29. In apparatus for producing filaments, a spinneret tube having adischarge orifice, a three sided tubular polarizer frame formed as thethree sides of'a rectangle and supported in a vertical plane beneathsaid discharge orifice by the free ends of the par- .allel' arms, and asource of static electricity having a positive pole thereof connected tosaid polarizer and the negative pole connected to said tube. a

30. In apparatus for producing filaments, a spinneret tube having adischarge orifice, a three sided tubular olarizer frame formed as thethree sides 0 a rectangle and supported in a vertical plane beneath saidspinneret tube by the free ends of; the parallel arms, the distancebetween said tube and said frame being-at least eight times as great asthe height of said frame, and asource of static electricity having apositive pole thereof connected to said polarizer and the negative poleconnected to said tube.

31. In apparatus for producing filaments, aspinneret tube having adischarge orifice,

'a three sided tubular polarizer frame mounted in a vertical plane belowsaid spinneret tube, the distance between said tube and said frame beingat least eight times as great as the height of said frame,and

a source of static electricity having a positive pole thereof connectedto said polarizer and the negative pole connected to said tube.

32. In apparatus for producing filaments, a spinneret tube having adischarge orifice, a three sided tubular formed as the three sides 0 arectangle and supported in a vertical plane beneath said olarizer framespinneret tube by the free ends of the parallel arms, the distancebetween said tube and said. frame being at least eight times as great asthe height of said frame, a filament receiving member located on a levelbelow the level of said frame and as far below said frame as. said frameis below said tube,

positive pole thereof connected to said polarizer and the negative poleconnected to sald tube.

a spinneret tube having a discharge orifice, a three sided tubularpolarizer frame mounted in a vertical plane below said spinneret tube,the distance between said tube and said frame being at least eight timesas great as the height of said frame, and a filament receiving memberlocated on a level below the level of said frame and as far below saidframe as said frame is below said tube,,and a source of staticelectricity having a positive pole thereof connected to said polarizerand the negative pole connected to said tube.

34. In apparatus for producing filaments, a spinneret tube enclosingcasing having a supply pipe opening, a spinneret tube positioned withinsaid casing and having .the lower end'thereof projecting below the lowerface of said casing and the upper end thereof in ported communicationwith saidsup- 33. In apparatus for producing filaments,

and a source of static electricity having a ply pipe opening, apolarizer member comprising a three sided tubular frame mounted belowsaidtube, a source of electricity, an electrical conductor between saidsource of electricity and said polarizer, and a second electricalconductor extending from said source of electricity and passing throughthe wall of said casing in insulated relation thereto and connected tosaid tube,

35. In apparatus for producing filaments, a spinneret tube enclosingcasing having a supply pipe opening, a spinneret tube positioned withinsaid casing and having the lower, end thereof projecting below the lowerface of said casing and the upper end thereof in ported communicationwith said supply pipe opening, a polarizer member mounted below saidtube and formed as a three sided frame supported ina vertical plane, asource of electricity, an electrical conductor between said source ofelectricity and said polarizer,

ply pipe opening, a polarizer member -com-.

prismg a three sided, tubular frame mounted below said tube, a source ofstatic electricity,

an electrical conductor between the positive extending from the negativepole of said' source of electricity andpassing through the wall of saidcasing in insulated relation thereto and connected to said tube.

37. In apparatus for producingfilaments, a spinneret tubeenclosingcaslng having a supply pipe opening, a spinneret tubepositioned within said casing and having the lower end thereofprojecting below the lower face of said casing and the upper end thereofin ported communication with said supply pipe opening, a polarizermember mounted below said tube and formed as a three sided framesupported in a vertical plane, a source of statlc electricity, anelectrical conductor between the ositive pole of said source ofelectricity and said polarizer, and a second electrical conductorextending from the negative pole of said source of eleetriclty andpassing through thewall of said casing in insulated relation thereto'and connected to said tube. 38. In apparatus for forming filaments, acasing having'side walls and a erforate bottom, a cover plate secured tot e upper end of said side walls and having an inlet opening therein forthe inflow of material to be expressed, a spacing plate positionedbetween said inlet opening and spaced from said bottom and resting onsaid casing and having a liquid tight fit with respect to the side wallsthereof, said spacing plate having an opening therethrough positioned inalignment with a corresponding opening in said bottom, and a filamentexpressing tube having a lower discharge orifice mounted ,in said casingand'extending from said spacing -plate' through one opening therein andproject'ing through the corresponding opening in said bottom.

39. In apparatus for forming filaments, .a casing having side walls anda perforate bottom, a cover plate secured to the upper end of said sidewalls and having an. inlet opening therein for the inflow of material tobe expressed, a spacing plate positioned between said inlet opening andspaced from said bottom and resting on said casing and having aliquidtight fit with respect to the side walls thereof, said spacingplate having a plurality of openings therethrough positioned inalignment with corresponding openings in saidbottom, and a filamentexpressingtube in each aligned corresponding openings, each tube havinga lower discharge orifice and mounted in said casing and extending fromsaid spacing plate through the same and projecting beyond thecorrespondingopening insaid bottom.

40. In apparatus for forming filaments,

.a casing having side walls and a perforate.

bottom, a cover plate secured to the upper end of said side walls andhaving an inlet opening therein for the inflow of material to beexpressed, a spacing plate positioned between said inlet opening andspaced from said bottom and resting on said casing and having aliquidtight fit with respect to the side walls thereof, said spacingplate having an opening therethrough positioned in alignment with acorresponding opening in said bottom, a filament expressing tube havinga lower discharge orifice mounted in said casing and extending from saidspacing plate through one opening therein and projecting through thecorresponding opening in said bottom, and a electrical conductorextending through the side wall of said casing and insulated therefromand secured to said tube at a point between said spacing plate and saidbottom.

41. The process of producing filaments which comprises expressingmaterial in fila ment form from a discharge orifice, leading thefilament downward past a polarlzer member spaced from said orifice andin close but spaced relation to said polarizer, subjecting the filamentto an electric treatment b which the polarizer is connected to thepositive pole of a source of static electricity and the filament is inelectrical contact with a connection from the negative pole of saidlocated along the path of travel of the filament and between saidorifice and said colelecting device.

42. The process of producing filaments which comprises expressingmaterial in filament form from a discharge orifice at the rate of atleast one thousand feet per minute,

leading the filament downward andpast a polarizer member and in closebut spaced relation thereto, subjecting the filament to an electrictreatment bywhich the polarizeris connected to the positive pole ofasource of static electricity and the filament is in clec-' tricalcontact with a connection from the negative pole of said source,andfinally collecting the filament on a collecting device,

said polarizer being located along the path.

of travel of the filament and between orifice and said collectingdevice.

43. The process of producing filaments said which comprises expressingmaterial in fila ment form from a discharge orifice, leading thefilament downward and past a polarizer member located six feet belowsaid discharge orifice and in close but spaced relation with respect tosaid polarizer member, subjecting the filament to an electric treatmentby which the polarizer is connected to the positive pole of a source ofstatic electricity and the filament-is in electrical contact with aconnection from the negative pole of I said source, and finallycollecting the filament on a collecting device, said polarizer beinglocated along the path of travel of the filament and between saidorifice and said collecting device. I

44. The process of producing filaments which comprises expressingmaterial in filament form from a discharge orifice, leading the filamentdownward and past the polarizer member located six feet, below saiddischarge orifice and in close but spaced relation with respect to saidpolarizer member, subjecting the filament to an electric treatment bywhich the polarizer is connected to the positive pole of a source ofstatic electricity and the filament is in electrical contact with aconnection from the negative pole of said source, and collecting said.filamenton a receiving device located as far below said polarizer assaid p'olarizer is below said orifice.

45. The process of producing filaments which comprises expressingmaterial in filament form from a discharge-orifice, leading the filamentdownward and past a polarizer member and in close but spaced relationthereto, subjecting the filament to an electric treatment equivalent to.01 ampere per minute at the polarizer, the polarizer being connected tothe positive pole of a source of static electricity and the filamentbeing in electrical contact with a connection from the negative pole ofsaid source, and collecting said filament on a receiving device locatedon a level below and to one side of said polarizer.

46. The process of producing filaments which comprises expressingmaterial in filament form from a discharge orifice, leading saidfilament downward and past a charged polarizer member and through the]electrostatic field set up thereby, effecting a substantial drying ofthe filament in the period of travel from said discharge orifice to theregion'of said polarizer, and collecting said dried filament, saidpolarizer member being located along the path of travel of said filamentand between said orifice and the point of collection of said driedfilament.

47. The process of producing filaments which comprises expressingmaterial in filament form from a discharge orifice, leading saidfilament from said discharge orifice and -ment form from a dischargeorifice leading said filament from said discharge orifice downward,adjacent to and past a charged .polarizer member and through theelectrostatic field set up thereby, effecting a substantial drying ofthe filament in the period of travel from said discharge orifice to theregion of said polarizer, and collecting said dried filament, saidpolarizer member being located along the path of travel of said filamentand between said orifice and the point of collection of said driedfilament.

49. In apparatus for producing filan'ients, a spinneret tube having adischarge orifice, a charged. polarizer member located on a level belowthe level of said discharge orifice, and spaced sufiiciently distanttherefrom to efi'ect a drying action during the travel of a filamentfrom the discharge orifice to the region of said polarizer, and areceiving member for the dried filament, said polarizer member beinglocated along the path of travel of the filament and between thedischarge orifice and said receiving member.

50; In apparatus for producing filaments, a spinneret tub having adischarge orifice, a polarizer member located sulficiently distant fromsaid discharge orifice to effect a substantial drying of the filament inits travel from said orifice'to the region of said polarizer, and afilament receiving member so positioned with respect to said orifice andsaid polarizer as to lead the filament in close but spaced relation pastsaid polarizer, said 'polarizer member being located along the path oftravel of the filament and between the discharge orifice and saidreceiving member. I

In testimony whereof I afiix my signature.

JOHN ANDRE ROUX.

